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Raspberry PI3-B+ GPIO interface board 2.4
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['''←''' Back|https://remoteqth.com/wiki/index.php?page=Remote+multi+rotator+control] {TOC} '''Specifications''' * 24V Power supply. * 24 Relay + LED, [controlled|Web relays] from Rapsberry PI2/B+ [GPIO|Web relay] * A/D converter with 4 inputs. * I2C output for connecting the temperature sensor. * Conector for power and configure four Arduino rotator interface. * The PCB size 5x25 cm !Schematics * '''[rev 2.4|https://remoteqth.com/hw/rot-interface-gpio24.pdf]''' ** [Introduction|https://remoteqth.com/hw/intro-rpi-gpio-24.pdf] ** [BOM|https://www.tme.eu/cz/parking/295472296de978bb5472fe61b8e81cea0d78b758.html] ** [interactive BOM|https://remoteqth.com/hw/ibom-rpi-gpio-2.4.html] ** [KiCad .zip|https://remoteqth.com/hw/rpi-gpio-2.4.zip] *[rev 2.3|https://remoteqth.com/hw/rot-interface-gpio23.pdf] *[rev 2.2|https://remoteqth.com/hw/rot-interface-gpio22.svg] !Quik start guide # Server box opens up over the upper part, lifting in the rear, and sliding backwards. Screwing not needed. # Before connect power '''remove JP9 jumper''' ([Introduction|https://remoteqth.com/hw/intro-rpi-gpio-24.pdf]) from gpio board - switching the 5V power supply for RPI # Power may be from '''two sources'''. If you use only one source, connect power to '''UPS input''' - this is monitoring internal A/D converter and LED on front panel. ## 24V DC from '''power supply''' ## 24V UPS from '''backup battery''' circuit # If power stable connected, '''connect Ethernet cable''' with DHCP on router enable to RPI '''and short JP9 jumper''' - now running and boot RPI server # Web interface IP addres will tell your dhcp server or any network scan, for example [Fing|https://play.google.com/store/apps/details?id=com.overlook.android.fing&feature=search_result#?t=W251bGwsMSwxLDEsImNvbS5vdmVybG9vay5hbmRyb2lkLmZpbmciXQ..] # '''Default login:''' ''yourcall,'' '''password:''' ''1234'' # Front panel '''power switch''' paralel connected to first relay on gpio board - rotators may be power ON localy or remotely via web interface # Front panel LED signals power in UPS input # '''Rotator modules''' work independently to RPI server - '''how configure [Single rotator interface|Rotator module version 3.3]''' # Power for each rotator connect independently to rear panel terminal blocks. # '''Web features''' configure via [RemoteQTH-server] # Before '''Power OFF''' need shutdown server from web interface. ''Have Fun!'' !Connectors * '''J1''' +24V DC Power * '''J6 J15''' - four rotator interface AC od DC Power * '''J5''' - RJ9 connector for other I2C temp sensors * '''P16''' - where the relay switch voltage on outs, here is voltage IN * '''P1-P12''' - GPIO Relay outputs * '''J7-J10''' - connect four rotator interface !!Jumpers * '''J2''' - Power switch and LED * '''J11''' - two free A/D inputs * '''I2C''' - set address A/D converter * '''JP1-JP8''' - preset power each rotator interface separately * '''J4''' - I2C bus * '''J3''' - switched +5V for USB hub * '''Green 1-4''' - measuring points input four A/D converters !!Trimmer * '''R27-R30''' - voltage divider for A/D converter !RemoteQTH server presets typycaly set [A/D converter|Sensors] - It depends on the settings of the input voltage divider (Trimmer R27-R30) [https://remoteqth.com/img/wiki-rotator-server-gpio22-server.png] ['''←''' Back to web page|https://remoteqth.com/remote-multi-rotator-control.php]